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What is the expectation value of the particle in a box system?

Maximo Witting ∙

Lvl 10

∙ 1mo ago

Updated: 3/12/2025

The expectation value of the particle in a box system is the average position of the particle within the box, calculated by taking the integral of the probability distribution function multiplied by the position variable.

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Q: What is the expectation value of the particle in a box system?

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What is the expectation value of energy for a particle in a box?

The expectation value of energy for a particle in a box is the average energy that the particle is expected to have when measured. It is calculated by taking the integral of the probability distribution of the particle's energy over all possible energy values.

What is an example of the expectation value in quantum mechanics?

An example of the expectation value in quantum mechanics is the average position of a particle in a one-dimensional box. This value represents the most likely position of the particle when measured.

What are the solutions for the particle in a box system?

The solutions for the particle in a box system are the quantized energy levels and corresponding wave functions that describe the allowed states of a particle confined within a box. These solutions are obtained by solving the Schrdinger equation for the system, leading to a set of discrete energy levels and wave functions that represent the possible states of the particle within the box.

What is the derivation of the energy levels of a particle in a box system?

The energy levels of a particle in a box system are derived from the Schrdinger equation, which describes the behavior of quantum particles. In this system, the particle is confined within a box, and the energy levels are quantized, meaning they can only take on certain discrete values. The solutions to the Schrdinger equation for this system yield the allowed energy levels, which depend on the size of the box and the mass of the particle.

What are the boundary conditions for a particle in a box?

The boundary conditions for a particle in a box refer to the constraints placed on the wave function of the particle at the boundaries of the box. These conditions require the wave function to be zero at the edges of the box, ensuring that the particle is confined within the box and cannot escape.

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Related Questions

What is the expectation value of energy for a particle in a box?

The expectation value of energy for a particle in a box is the average energy that the particle is expected to have when measured. It is calculated by taking the integral of the probability distribution of the particle's energy over all possible energy values.

What is the expectation value of the momentum squared for a particle in a box?

The expectation value of the momentum squared for a particle in a box is equal to (n2 h2) / (8 m L2), where n is the quantum number, h is the Planck constant, m is the mass of the particle, and L is the length of the box.

What is an example of the expectation value in quantum mechanics?

An example of the expectation value in quantum mechanics is the average position of a particle in a one-dimensional box. This value represents the most likely position of the particle when measured.

Why does expectation value of momentum of a particle in one dimensional box box for state one comes to be zero?

The expectation value of momentum for state one in a one-dimensional box is zero because this state represents the ground state of the system, which has a symmetric probability distribution of finding the particle in the box. This symmetric distribution results in cancelation of positive and negative momentum contributions upon averaging, resulting in a net expectation value of zero momentum.

What are the solutions for the particle in a box system?

The solutions for the particle in a box system are the quantized energy levels and corresponding wave functions that describe the allowed states of a particle confined within a box. These solutions are obtained by solving the Schrdinger equation for the system, leading to a set of discrete energy levels and wave functions that represent the possible states of the particle within the box.

What is the derivation of the energy levels of a particle in a box system?

The energy levels of a particle in a box system are derived from the Schrdinger equation, which describes the behavior of quantum particles. In this system, the particle is confined within a box, and the energy levels are quantized, meaning they can only take on certain discrete values. The solutions to the Schrdinger equation for this system yield the allowed energy levels, which depend on the size of the box and the mass of the particle.

What is the probability of finding a particle in a box at a specific location?

The probability of finding a particle in a box at a specific location is determined by the square of the wave function at that location. This probability is represented by the absolute value of the wave function squared, which gives the likelihood of finding the particle at that particular position.

What are the boundary conditions for a particle in a box?

The boundary conditions for a particle in a box refer to the constraints placed on the wave function of the particle at the boundaries of the box. These conditions require the wave function to be zero at the edges of the box, ensuring that the particle is confined within the box and cannot escape.

How can you understand the particle in a box application of schrodingers equation in your physical world?

The particle in a box model is a simplified representation used in quantum mechanics to understand the behavior of particles confined to a specific region. By solving Schrödinger's equation for this system, we can gain insights into the energy levels and allowed states of the particle. This can help us better understand how particles behave in constrained environments, such as electrons in atoms or molecules.

What is the relationship between the wave function and the particle in a box?

In quantum mechanics, the wave function describes the probability of finding a particle in a certain location. In the case of a particle in a box, the wave function represents the possible energy states of the particle confined within the boundaries of the box. The shape of the wave function inside the box determines the allowed energy levels for the particle.

What are the particle in a box boundary conditions and how do they affect the behavior of particles in a confined space?

The particle in a box boundary conditions refer to the constraints placed on a particle's movement within a confined space, such as a one-dimensional box. These conditions dictate that the wave function of the particle must be zero at the boundaries of the box. This restriction influences the energy levels and allowed wavelengths of the particle, leading to quantized energy levels and discrete wavelengths. As a result, the behavior of particles in a confined space is restricted and exhibits wave-like properties, affecting their overall behavior and movement within the box.

What are the properties of a particle in a box with a delta potential?

In a particle in a box with a delta potential, the particle is confined to a specific region and encounters a sudden change in potential energy at a specific point. This can lead to unique behaviors such as wavefunction discontinuity and non-zero probability of finding the particle at the point of the potential change.

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